42313253 has 2 divisors, whose sum is σ = 42313254. Its totient is φ = 42313252.

The previous prime is 42313223. The next prime is 42313259. The reversal of 42313253 is 35231324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42276004 + 37249 = 6502^2 + 193^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42313253 is a prime.

It is a super-2 number, since 2×42313253² = 3580822758884018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42313259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21156626 + 21156627.

It is an arithmetic number, because the mean of its divisors is an integer number (21156627).

Almost surely, 2^42313253 is an apocalyptic number.

It is an amenable number.

42313253 is a deficient number, since it is larger than the sum of its proper divisors (1).

42313253 is an equidigital number, since it uses as much as digits as its factorization.

42313253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 23.

The square root of 42313253 is about 6504.8637956532. The cubic root of 42313253 is about 348.4647119839.

Adding to 42313253 its reverse (35231324), we get a palindrome (77544577).

The spelling of 42313253 in words is "forty-two million, three hundred thirteen thousand, two hundred fifty-three".